src/surf/maxmin_private.hpp

   1 /* Copyright (c) 2004-2014. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #ifndef _SURF_MAXMIN_PRIVATE_H
   8 #define _SURF_MAXMIN_PRIVATE_H
   9
  10 #include <xbt/base.h>
  11
  12 #include "surf/maxmin.h"
  13 #include "xbt/swag.h"
  14 #include "xbt/mallocator.h"
  15 #include "surf_interface.hpp"
  16
  17 /** @ingroup SURF_lmm
  18  * @brief LMM element
  19  */
  20 typedef struct lmm_element {
  21   /* hookup to constraint */
  22   s_xbt_swag_hookup_t element_set_hookup;
  23   s_xbt_swag_hookup_t active_element_set_hookup;
  24
  25   lmm_constraint_t constraint;
  26   lmm_variable_t variable;
  27   double value;
  28 } s_lmm_element_t;
  29 #define make_elem_active(elem) xbt_swag_insert_at_head(elem,&(elem->constraint->active_element_set))
  30 #define make_elem_inactive(elem) xbt_swag_remove(elem,&(elem->constraint->active_element_set))
  31
  32 typedef struct lmm_constraint_light {
  33   double remaining_over_usage;
  34   lmm_constraint_t cnst;
  35 } s_lmm_constraint_light_t;
  36
  37 /** @ingroup SURF_lmm
  38  * @brief LMM constraint
  39  */
  40 typedef struct lmm_constraint {
  41   /* hookup to system */
  42   s_xbt_swag_hookup_t constraint_set_hookup;
  43   s_xbt_swag_hookup_t active_constraint_set_hookup;
  44   s_xbt_swag_hookup_t modified_constraint_set_hookup;
  45   s_xbt_swag_hookup_t saturated_constraint_set_hookup;
  46
  47   s_xbt_swag_t element_set;     /* a list of lmm_element_t */
  48   s_xbt_swag_t active_element_set;      /* a list of lmm_element_t */
  49   double remaining;
  50   double usage;
  51   double bound;
  52   int sharing_policy; /* see @e_surf_link_sharing_policy_t (0: FATPIPE, 1: SHARED, 2: FULLDUPLEX) */
  53   void *id;
  54   int id_int;
  55   double lambda;
  56   double new_lambda;
  57   lmm_constraint_light_t cnst_light;
  58 } s_lmm_constraint_t;
  59
  60 /** @ingroup SURF_lmm
  61  * @brief LMM variable
  62  */
  63 typedef struct lmm_variable {
  64   /* hookup to system */
  65   s_xbt_swag_hookup_t variable_set_hookup;
  66   s_xbt_swag_hookup_t saturated_variable_set_hookup;
  67
  68   s_lmm_element_t *cnsts;
  69   int cnsts_size;
  70   int cnsts_number;
  71   double weight;
  72   double bound;
  73   double value;
  74   void *id;
  75   int id_int;
  76   unsigned visited;             /* used by lmm_update_modified_set */
  77   /* \begin{For Lagrange only} */
  78   double mu;
  79   double new_mu;
  80   double (*func_f) (struct lmm_variable * var, double x);       /* (f)    */
  81   double (*func_fp) (struct lmm_variable * var, double x);      /* (f')    */
  82   double (*func_fpi) (struct lmm_variable * var, double x);     /* (f')^{-1}    */
  83   /* \end{For Lagrange only} */
  84 } s_lmm_variable_t;
  85
  86 /** @ingroup SURF_lmm
  87  * @brief LMM system
  88  */
  89 typedef struct lmm_system {
  90   int modified;
  91   int selective_update_active;  /* flag to update partially the system only selecting changed portions */
  92   unsigned visited_counter;     /* used by lmm_update_modified_set */
  93   s_xbt_swag_t variable_set;    /* a list of lmm_variable_t */
  94   s_xbt_swag_t constraint_set;  /* a list of lmm_constraint_t */
  95
  96   s_xbt_swag_t active_constraint_set;   /* a list of lmm_constraint_t */
  97   s_xbt_swag_t modified_constraint_set; /* a list of modified lmm_constraint_t */
  98
  99   s_xbt_swag_t saturated_variable_set;  /* a list of lmm_variable_t */
 100   s_xbt_swag_t saturated_constraint_set;        /* a list of lmm_constraint_t_t */
 101
 102   simgrid::surf::ActionLmmListPtr keep_track;
 103
 104   xbt_mallocator_t variable_mallocator;
 105 } s_lmm_system_t;
 106
 107 #define extract_variable(sys) xbt_swag_extract(&(sys->variable_set))
 108 #define extract_constraint(sys) xbt_swag_extract(&(sys->constraint_set))
 109 #define insert_constraint(sys,cnst) xbt_swag_insert(cnst,&(sys->constraint_set))
 110 #define remove_variable(sys,var) do {xbt_swag_remove(var,&(sys->variable_set));\
 111                                  xbt_swag_remove(var,&(sys->saturated_variable_set));} while(0)
 112 #define remove_constraint(sys,cnst) do {xbt_swag_remove(cnst,&(sys->constraint_set));\
 113                                         xbt_swag_remove(cnst,&(sys->saturated_constraint_set));} while(0)
 114 #define make_constraint_active(sys,cnst) xbt_swag_insert(cnst,&(sys->active_constraint_set))
 115 #define make_constraint_inactive(sys,cnst) \
 116   do { xbt_swag_remove(cnst, &sys->active_constraint_set);              \
 117     xbt_swag_remove(cnst, &sys->modified_constraint_set); } while (0)
 118
 119 /** @ingroup SURF_lmm
 120  * @brief Print informations about a lmm system
 121  *
 122  * @param sys A lmm system
 123  */
 124 XBT_PRIVATE void lmm_print(lmm_system_t sys);
 125
 126 extern XBT_PRIVATE double (*func_f_def) (lmm_variable_t, double);
 127 extern XBT_PRIVATE double (*func_fp_def) (lmm_variable_t, double);
 128 extern XBT_PRIVATE double (*func_fpi_def) (lmm_variable_t, double);
 129
 130 #endif                          /* _SURF_MAXMIN_PRIVATE_H */